Craig Kelly and Tony Abbott are trying to pull the Liberal party back from the centre to the right.
Photograph: Mick Tsikas/AAP

Coral bleaching has been happening for centuries, threats of rising sea levels to countries such as the Maldives and Tuvalu are greatly exaggerated and temperature gains have been grossly exaggerated by scientists.

These are the assessments of the member for Hughes, Craig Kelly, who is part of a Tony Abbott-led speaking campaign to pull the Liberal party back from the centre.

The Guardian has obtained a tape of a presentation by Kelly at the right-aligned Mosman branch of the Liberal party in September that outlines in detail his climate scepticism.

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Liberal MP Craig Kelly argues against climate change action – audio

Abbott himself was meant to be the star billing but was unable to attend, leaving Kelly and New South Wales senator Jim Molan to occupy centre stage, after running a gauntlet of about 100 demonstrators who turned up to protest against the Liberal party’s lack of policy on climate change.

Kelly’s PowerPoint presentation veered between mocking “the lefties” and arguing that there was no need to tackle climate change because its impact had been grossly overblown.

“Here we are in Paris, France,” he said of his first slide. “A whole lot of lefties here celebrating the Paris agreement, the achievement of the day.”

Kelly then said the debate about global warming was about trying to get “better weather, and that people wanted to dial down the CO2 knob.

“It’s CO2 we are talking about: it’s what turns water into soda water, its what makes chardonnay into champagne,” he said derisively, before claiming that the consensus view among the world’s scientists that the planet was warming was wrong.

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Kelly said that “30 years ago, the temperature was the same globally about where it was today” – even though the Bureau of Meteorology and other international agencies estimate the planet has already warmed more than 1 degree in the past century.

“The reality is we live in a time where our generation has never ever been as safe from the climate because of fossil fuels, concrete and steel,” Kelly said. “The climate was always dangerous. We didn’t make it dangerous.”

He also claimed “coral bleaching was a centuries-old problem, science tells us” and that warnings about the polar icecaps were not borne out. While he acknowledged there had been some shrinking in the Arctic, he said this year the north-west passage had been closed owing to ice.

Kelly, who was a furniture salesman before he entered parliament, also cited a study that said Tuvalu was growing not sinking. The peer-reviewed study shows the island’s land mass has grown owing to sedimention and reef growth, but Kelly ignored part of the same study that said climate change remained the single biggest threat to the low-lying Pacific islands and their future.

As for Australia’s Paris target, Kelly said it was “the most onerous of any nation in the world because of our high rates of population growth”, and the Labor party planned to wreck the economy with its proposal to set a target of 45% reduction by 2030.

The chief scientist, Alan Finkel, had said Australia on its own could not change the world’s climate, Kelly said.

Now that “the US was out” of the Paris agreement, and “China and India weren’t doing anything”, Australia had “an escape clause” and it should use it.